因此为防止盖板模具零件在工作时突然脆断,盖板模具要具有较高的强度和韧性.最后模具要在循环使用中不会导致疲劳断裂,不拉伸、弯曲。一般盖板模具的性能都是由强度、韧性、硬度、以及材料中夹杂物的含量来决定其好坏,
Therefore, in order to prevent the sudden brittle fracture of the cover die parts in work, the cover die should have high strength and toughness. Finally, the die should not cause fatigue fracture, no stretching and bending during recycling. Generally, the properties of the cover die are determined by strength, toughness, hardness and the content of inclusions in the material.